J. Fast

activity

19942021

most citedStudy of Exclusive Radiative B Meson Decays

134 citations · 3.3k across the 122 of their papers we have counts for

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117 papers · 1 filter

hep-ex2021

Measurements of the branching fractions for $B \to K^{*} γ$ decays at Belle II

F. Abudinén, I. Adachi, R. Adak +565

This paper reports a study of $B \to K^{*} γ$ decays using $62.8 \pm 0.6$ fb $^{- 1}$ of data collected during 2019--2020 by the Belle II experiment at the SuperKEKB $e^{+} e^{-}$ asymm…

hep-ex2021

Angular analysis of $B^{+} \to ρ^{+} ρ^{0}$ decays reconstructed in 2019-2020 Belle II data

Belle II collaboration, F. Abudinén, I. Adachi +549

We report on the first Belle II measurement of the branching fraction ( $B$ ) and longitudinal polarization fraction ( $f_{L}$ ) of $B^{+} \to ρ^{+} ρ^{0}$ decays. We reconstruct $B^+\…

hep-ex2021

Measurement of the branching fraction for $B^{0} \to π^{0} π^{0}$ decays reconstructed in 2019-2020 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +551

We report the first reconstruction of the $B^{0} \to π^{0} π^{0}$ decay mode at Belle II using samples of 2019 and 2020 data that correspond to 62.8 fb $^{- 1}$ of integrated luminos…

hep-ex2021★ 1 cited

Measurements of branching fractions and direct CP asymmetries in $B^{0} \to K^{+} π^{-}$ , $B^{+} \to K_{S}^{0} π^{+}$ and $B^{0} \to π^{+} π^{-}$ using 2019 and 2020 data

Belle II Collaboration, F. Abudinén, I. Adachi +549

We report updated measurements of branching fractions ( $B$ ) and CP-violating charge asymmetries ( $A_{CP}$ ) for charmless $B$ decays at Belle II, which opera…

hep-ex2021★ 2 cited

Measurement of $B$ ( $B_{s} \to D_{s} X$ ) with $B_{s}$ Semileptonic Tagging

B. Wang, K. Kinoshita, H. Aihara +153

We report the first direct measurement of the inclusive branching fraction $B (B_{s} \to D_{s} X)$ via $B_{s}$ tagging in $e^{+} e^{-} \to Υ$ (5S) events. Tagging is accomplish…

hep-ex2021

Measurement of the branching fractions of $B \to η^{'} K$ decays using 2019/2020 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +545

This note describes the rediscovery of $B \to η^{'} K$ decays in Belle II data, both in the charged and neutral final state: $B_{0} \to η^{'} K_{S}$ and $B^{\pm} \to η^{'} K^{\pm}$ . The $η^{'}$ is searched…

hep-ex2020★ 6 cited

Measurement of time-dependent CP violation parameters in $B^{0} \to K_{0}^{S} K_{0}^{S} K_{0}^{S}$ decays at Belle

Belle Collaboration, K. H. Kang, H. Park +202

We measure the time-dependent $C P$ violation parameters in $B^{0} \to K_{S}^{0} K_{S}^{0} K_{S}^{0}$ decays using $772 \times 1 0^{6}$ $B {\mkern 1.5mu\overline{\mkern-1.5mu B \mkern-…

hep-ex2020★ 2 cited

Studies of the semileptonic $B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ and $B^{-} \to D^{0} ℓ^{-} ν ˉ_{ℓ}$ decay processes with 34.6 fb $^{- 1}$ of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +542

We report measurements of the $B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{l}$ and $B^{-} \to D^{0} ℓ^{-} ν ˉ_{l}$ processes using 34.6 fb $^{- 1}$ of collision events recorded by the Belle…

hep-ex2020★ 1 cited

Measurement of the $B^{0}$ lifetime using fully reconstructed hadronic decays in the 2019 Belle II dataset

Belle II Collaboration, F. Abudinén, I. Adachi +534

This document presents the measurement of $B^{0}$ meson lifetimes using the 2019 Belle II dataset that corresponds to an integrated luminosity of $8.7 \pm 0.2$ fb $^{- 1}$ . Each candid…

hep-ex2020★ 20 cited

Evidence for a vector charmonium-like state in $e^{+} e^{-} \to D_{s}^{+} D_{s 2}^{*} (2573)^{-} + c . c .$

Belle Collaboration, S. Jia, C. P. Shen +173

We report the measurement of $e^{+} e^{-} \to D_{s}^{+} D_{s 2}^{*} (2573)^{-} + c . c .$ via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb $^{- 1}$ collected with t…

hep-ex2020★ 20 cited

Dalitz analysis of $D^{0} \to K^{-} π^{+} η$ decays at Belle

Belle Collaboration, Y. Q. Chen, L. K. Li +177

We present the results of the first Dalitz plot analysis of the decay $D^{0} \to K^{-} π^{+} η$ . The analysis is performed on a data set corresponding to an integrated luminosity of 9…

hep-ex2019★ 1 cited

Measurements of the Branching Fractions $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c}^{^{'} 0})$ , $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c} (2645)^{0})$ and $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c} (2790)^{0})$

Belle Collaboration, Y. Li, Y. B. Li +173

Using the data sample of 711 fb $^{- 1}$ of $Υ (4 S)$ on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measu…

hep-ex2019★ 6 cited

Measurement of the charm-mixing parameter $y_{C P}$ in $D^{0} \to K_{S}^{0} ω$ decays at Belle

Belle Collaboration, M. Nayak, D. Cinabro +179

We report the first measurement of the charm-mixing parameter $y_{C P}$ in $D^{0}$ decays to the $C P$ -odd final state $K_{S}^{0} ω$ . The study uses the full Belle $e^{+} e^{-}$ annihila…

hep-ex2019★ 44 cited

Search for $B^{+} \to μ^{+} ν_{μ}$ and $B^{+} \to μ^{+} N$ with inclusive tagging

M. T. Prim, F. U. Bernlochner, P. Goldenzweig +191

We report the result for a search for the leptonic decay of $B^{+} \to μ^{+} ν_{μ}$ using the full Belle data set of 711 fb $^{- 1}$ of integrated luminosity at the $Υ (4 S)$ resonance.…

hep-ex2019★ 2 cited

Observation of the radiative decays of $Υ (1 S)$ to $χ_{c 1}$

P. Katrenko, I. Adachi, H. Aihara +166

We report the first observation of the radiative decay of the $Υ (1 S)$ into a charmonium state. The statistical significance of the observed signal of $Υ (1 S) \to γ χ_{c 1}$ is 6.3 sta…

hep-ex2019

Experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$

The Belle Collaboration, A. Abdesselam, I. Adachi +454

We report an experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$ using 980 fb $^{- 1}$ data in the $e^{+} e^{-}$ annihilation around $s = 10.6$ GeV collected by…

hep-ex2019★ 11 cited

First measurement of the CKM angle $ϕ_{3}$ with $B^{\pm} \to D (K_{S}^{0} π^{+} π^{-} π^{0}) K^{\pm}$ decays

Belle Collaboration, P. K. Resmi, J. Libby +165

We present the first model-independent measurement of the CKM unitarity triangle angle $ϕ_{3}$ using $B^{\pm} \to D (K_{S}^{0} π^{+} π^{-} π^{0}) K^{\pm}$ decays, where $D$ indicates either a…

hep-ex2019★ 4 cited

Search for $B^{0} \to X (3872) γ$

Belle Collaboration, P. -C. Chou, P. Chang +191

We report the results of a search for the decay $B^{0} \to X (3872) (\to J / ψ π^{+} π^{-}) γ$ . The analysis is performed on a data sample corresponding to an integrated luminosity of $711\,{…

hep-ex2019★ 68 cited

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, A. Abdesselam, I. Adachi +461

We report a measurement of the ratios of branching fractions $R (D) = B (B ˉ \to D τ^{-} ν ˉ_{τ}) / B (B ˉ \to D ℓ^{-} ν ˉ_{ℓ})$ and $\mathcal{R}(D^{…

hep-ex2019★ 2 cited

Measurement of branching fraction and final-state asymmetry for the $B ˉ^{0} \to K_{S}^{0} K^{\mp} π^{\pm}$ decay

Belle Collaboration, Y. -T. Lai, I. Adachi +184

We report a measurement of the branching fraction and final-state asymmetry for the $B ˉ^{0} \to K_{S}^{0} K^{\mp} π^{\pm}$ decays. The analysis is based on a data sample of 711 $…

hep-ex2019★ 33 cited

First measurements of absolute branching fractions of the $Ξ_{c}^{+}$ baryon at Belle

Belle Collaboration, Y. B. Li, C. P. Shen +192

We present the first measurements of the absolute branching fractions of $Ξ_{c}^{+}$ decays into $Ξ^{-} π^{+} π^{+}$ and $p K^{-} π^{+}$ final states. Our analysis is based on a data set of $(77…

hep-ex2019★ 35 cited

Measurement of the $D^{-}$ polarization in the decay $B^{0} \to D^{-} τ^{+} ν_{τ}$

Belle Collaboration, A. Abdesselam, I. Adachi +457

We report the first measurement of the $D^{*-}$ meson polarization in the decay $B^{0} \to D^{*-} τ^{+} ν_{τ}$ using the full data sample of 772 $\times 1 0^{6}$ $B B ˉ$ pairs recorded…

hep-ex2019★ 8 cited

Evidence for $B^{+} \to h_{c} K^{+}$ and observation of $η_{c} (2 S) \to p p ˉ π^{+} π^{-}$

Belle Collaboration, K. Chilikin, I. Adachi +173

A search for the decays $B^{+} \to h_{c} K^{+}$ and $B^{0} \to h_{c} K_{S}^{0}$ is performed. Evidence for the decay $B^{+} \to h_{c} K^{+}$ is found; its significance is $4.8σ…

hep-ex2018★ 52 cited

First measurements of absolute branching fractions of $Ξ_{c}^{0}$ at Belle

Belle Collaboration, Y. B. Li, C. P. Shen +158

We present the first measurements of absolute branching fractions of $Ξ_{c}^{0}$ decays into $Ξ^{-} π^{+}$ , $Λ K^{-} π^{+}$ , and $p K^{-} K^{-} π^{+}$ final states. The measurements are made using a…

Measurements of the branching fractions for B→K∗γ decays at Belle II

Angular analysis of B+→ρ+ρ0 decays reconstructed in 2019-2020 Belle II data

Measurement of the branching fraction for B0→π0π0 decays reconstructed in 2019-2020 Belle II data

Measurements of branching fractions and direct CP asymmetries in B0→K+π−, B+→KS0​π+ and B0→π+π− using 2019 and 2020 data

Measurement of B(Bs​→Ds​X) with Bs​ Semileptonic Tagging

Measurement of the branching fractions of B→η′K decays using 2019/2020 Belle II data

Measurement of time-dependent CP violation parameters in B0→K0S​K0S​K0S​ decays at Belle

Studies of the semileptonic Bˉ0→D∗+ℓ−νˉℓ​ and B−→D0ℓ−νˉℓ​ decay processes with 34.6 fb−1 of Belle II data

Measurement of the B0 lifetime using fully reconstructed hadronic decays in the 2019 Belle II dataset

Evidence for a vector charmonium-like state in e+e−→Ds+​Ds2∗​(2573)−+c.c.

Dalitz analysis of D0→K−π+η decays at Belle

Measurements of the Branching Fractions B(B−→Λˉc−​Ξc′0​), B(B−→Λˉc−​Ξc​(2645)0) and B(B−→Λˉc−​Ξc​(2790)0)

Measurement of the charm-mixing parameter yCP​ in D0→KS0​ω decays at Belle

Search for B+→μ+νμ​ and B+→μ+N with inclusive tagging

Observation of the radiative decays of Υ(1S) to χc1​

Experimental determination of the isospin of Λc​(2765)+/Σc​(2765)+

First measurement of the CKM angle ϕ3​ with B±→D(KS0​π+π−π0)K± decays

Search for B0→X(3872)γ

Measurement of R(D) and R(D∗) with a semileptonic tagging method

Measurement of branching fraction and final-state asymmetry for the Bˉ0→KS0​K∓π± decay

First measurements of absolute branching fractions of the Ξc+​ baryon at Belle

Measurement of the D∗− polarization in the decay B0→D∗−τ+ντ​

Evidence for B+→hc​K+ and observation of ηc​(2S)→ppˉ​π+π−

First measurements of absolute branching fractions of Ξc0​ at Belle

Measurements of the branching fractions for $B \to K^{*} γ$ decays at Belle II

Angular analysis of $B^{+} \to ρ^{+} ρ^{0}$ decays reconstructed in 2019-2020 Belle II data

Measurement of the branching fraction for $B^{0} \to π^{0} π^{0}$ decays reconstructed in 2019-2020 Belle II data

Measurements of branching fractions and direct CP asymmetries in $B^{0} \to K^{+} π^{-}$ , $B^{+} \to K_{S}^{0} π^{+}$ and $B^{0} \to π^{+} π^{-}$ using 2019 and 2020 data

Measurement of $B$ ( $B_{s} \to D_{s} X$ ) with $B_{s}$ Semileptonic Tagging

Measurement of the branching fractions of $B \to η^{'} K$ decays using 2019/2020 Belle II data

Measurement of time-dependent CP violation parameters in $B^{0} \to K_{0}^{S} K_{0}^{S} K_{0}^{S}$ decays at Belle

Studies of the semileptonic $B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ and $B^{-} \to D^{0} ℓ^{-} ν ˉ_{ℓ}$ decay processes with 34.6 fb $^{- 1}$ of Belle II data

Measurement of the $B^{0}$ lifetime using fully reconstructed hadronic decays in the 2019 Belle II dataset

Evidence for a vector charmonium-like state in $e^{+} e^{-} \to D_{s}^{+} D_{s 2}^{*} (2573)^{-} + c . c .$

Dalitz analysis of $D^{0} \to K^{-} π^{+} η$ decays at Belle

Measurements of the Branching Fractions $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c}^{^{'} 0})$ , $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c} (2645)^{0})$ and $B (B^{-} \to Λ ˉ_{c}^{-} Ξ_{c} (2790)^{0})$

Measurement of the charm-mixing parameter $y_{C P}$ in $D^{0} \to K_{S}^{0} ω$ decays at Belle

Search for $B^{+} \to μ^{+} ν_{μ}$ and $B^{+} \to μ^{+} N$ with inclusive tagging

Observation of the radiative decays of $Υ (1 S)$ to $χ_{c 1}$

Experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$

First measurement of the CKM angle $ϕ_{3}$ with $B^{\pm} \to D (K_{S}^{0} π^{+} π^{-} π^{0}) K^{\pm}$ decays

Search for $B^{0} \to X (3872) γ$

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

Measurement of branching fraction and final-state asymmetry for the $B ˉ^{0} \to K_{S}^{0} K^{\mp} π^{\pm}$ decay

First measurements of absolute branching fractions of the $Ξ_{c}^{+}$ baryon at Belle

Measurement of the $D^{-}$ polarization in the decay $B^{0} \to D^{-} τ^{+} ν_{τ}$

Evidence for $B^{+} \to h_{c} K^{+}$ and observation of $η_{c} (2 S) \to p p ˉ π^{+} π^{-}$

First measurements of absolute branching fractions of $Ξ_{c}^{0}$ at Belle